Dump-car.



PATBNTED SEPT. 19, 1905.

F. S. INGOLDSBY.

DUMP CAR.

APPLIOATION FILED JAN. 30. 1905.

\1 l 1111/671 Ifo?? UNITED STATES PATENT OFFICE.

FRANK S. INGOLDSBY, OF ST. LOUIS, MISSOURI, ASSIGNOR TO-THE INGOLDSBY AUTOMATIC OAR COMPANY, OF ST. LOUIS, MISSOURI, A CORPORATION OF VEST VIRGINIA.

DUMP-CAR.

Specification of Letters Patent.

Patented Sept. 19, 1905.

vDump-Cars, of which the following is a full,

clear, and exact description, reference being had to the accompanying drawings.

Theobject of this invention is to provide a simple and eficient mechanism for receiving the impact of dropping doors of dump-cars and hold the same at Various inclinations, as desired.

The invention is particularly applicable to dump-cars of what are Yknown as the Ingoldsby type, these cars having a central longitudinal beam and doors hinged at the opposite edges thereof and arranged to swing downward.

The invention is -an improvement on the structure shown in my prior application, Serial No. 238,300, filed December 27, 19011, and relates particularly to a gravity-lock for holding the bumpers'in various positions.

In the drawings. Figure 1 is a cross-section through a car of the Ingoldsby type having my bumping mechanism. Fig. 2 is an enlarged view of the portion of the mechanism concerned with the lock, being taken from the same position as Fig. 1. Fig. 3 is a side elevation of such lock, being a section along the line 3 3 of Fig. 1. Fig. I is a cross-section on the line 4 4 of Fig. 3.

The car has a longitudinal beam A, to the lower opposite` edges of which are hinged the dumping-doors B. These doors are adapted to have their outer edges abut the sides Cof the car. The doors may be held in closed position by hooks D, pivoted to the sides of the car and engaging the projecting ends of Hoorbeams E, secured to the under side of the against the sheet by guiding-stirrups f2 and f3, riveted to the sheet. A strengthening-anglef1i may be applied to the lower end of the sheet. The Shanks of the bumpers are in the shape of an are about the pivot of the corresponding door, so that they may be shoved through their stirrups to cause the bumpers to project varying amounts and still always be in line with the springs H on the doors.

To hold the bumpers in the desired position, I provide a gravity-lock J, which is a bar pivoted on a bolt L, secured to an angle-platef'r, carried by the plate F, in the opposite side from the stirrups, the same rivets]6 holding the plate.)p5 and the stirrup f3. The bar J is adapted 4to enter any of a series of notches g on the under edge of the bumper, being held in this position by the greater weight of the other end thereof, which is elongated or otherwise counterweighted for the purpose. If found desirable, the long arm may carry an additional counterweight slipped over it and secured to it either rigidly or adjustably.

This bar J holds the bumpers Gr Very firmly in position. At the same time it is easy to release the bumpers, even when the doors arerestng on them, should any clogging of the material at the door-hinges require this. To accom- A plish this, it is only necessary for the attendant to strike a blow upon the under side of the bar J, knocking it up into the position shown in dotted lines in Fig. 3. The attendant may perform this operation with perfect safety while standing under the Car beneath the central beam, which protects him. Another advantage of this lock is that it is permanently attached to the car and is not liable to become out of order.

It will be noticed that the spring H is formed peculiarly, its outer portion descending abruptly from the door andthe inner portion inclining gradually. and by a longer reach to the door. The bend of the spring is great enough so that the direction of the incline therefrom toward-the pivot of the door is upward of the plane passing from the bend through the pivot. The reason for this peculiar shape is the following: When the quadrant is run out to stop the door at one of its intermediate positions, the quadrant becomes, in effect, a beam fixed at one end, and any pressure vertically downward on the end of the bumper causes a severe tensile strain IOO along its upper edge at the stirrups. The spring, however, engages the lower edge of the bumper-head and below that point continues to recede from the door, so that it makes, in effect, an inclined shoulder resisting any downward movement of the bumper. The downwardly-vertical strain being' thus neutralized, the quadrant is left in pure compression, as it should be.

l. In a dump-car, the combination of a dum ping-door, a bumper therefor, and a gravity-lock for the bumper.

2. In a dump-car, the combination of a dumping' door, an adjustably positioned bumper, a support for the bumper, agravitylock for the bumper carried by said support.

3. In a dump-car, the combination of a dumping-door,a bumper tliereior,said bumper having aplurality of notches, and a locking 4bar adapted to enter any of said notches.

4:. In a dump-car, the combination of a dumping-door, a bumper having a plurality of recesses in its shank, a support for the bumper-,and a pivoted locking-bar adapted to enter any of said recesses.

5. In a dump -car, the combination of a dumping-door, a bumper having an arcual shank with notches on one edge, a guidingsupport for said bumper, and a pivoted bar adapted to enter one or another of said notches.

6. In a dump-car, in combination, adumping-door, a bumper, a support for the bumper slidably carrying it, a pivoted locking-bar carried by said support, said bar being adapted to enter a notch in the bumper'to hold it in place.

7. In a dump-car, the combination of a dumping-door, a depending sheet, a bumper having an arcual shank lying alongside of said sheet, a guiding-stirrup secured to said sheet and embracing said shan k, and a gravitylock pivotally carried by said sheet and adapt-- ed to engage said shank.

8. In a dump -car, the combination of a dumping-door, a depending sheet, a bumper having a shank lying alongside of said sheet, a guiding-stirrup secured to said sheet and embracing said shank, and a gravity-lock adapted to engage said shank, said lock being pivoted to an angle-plate secured to the sheet on the opposite side thereof from the stirrup.

9. In a dump -car, the combination of a dumping-door, a bumper having an arcual shank, a support for the bumper having a stirrup extending across the shank of the bumper, said bumper having a series of notches in its edge, an angle-plate carried by said support, a bar pivoted to said plate and adapted to enter one of said notches, said bar having its other end heavier to provide a g'ravitylock.

10. In a dump-car, the combination with the stationary part of the car, of a dumping'- door pivotally carried thereby, a depending' vertical plate carried by said stationary part, a bumper having a shank lying alongside of said plate, said shank being' arcual about the pivot of the door, a stirrup carried by said plate and embracing and guiding said shank, said shank having notches on its under edge, and a bar supported by said sheet on a pivot which is on the opposite side of the sheet from said stirrup, said bar having the upper edge of an end adapted to enter any of said notches, and having its other end actingas a counterweight to hold the bar in position by gravity.

11. In adump-car, in combination, adumping-door, a bumper therefor and a spring' carried by the door for impingement against the bumper, the parts being' shaped to counteract the strain upon the bumper which tends to bend it.

l2. In a dump-car, in combination, a pivoted dumping-door, a spring carried on the under side thereof, a bumper beneath the door adapted to be engaged by said spring, said spring being formed to counteract the vertically-downward strain in the bumper which the imping'ing door would otherwise cause.

In testimony whereof I hereunto affix my signature in the presence of two witnesses.

FRANK S. INGOLDSBY.

Witnesses:

JOSEPH R. BOWLING, CHAs. H. MEYER. 

